Shoe size for 12 month old

I agree that the Robeez are your best bet, but if you want regular shoes, I would toss at least a size 4 in there too. My daughter was smaller (18.8 lbs and 27 inches) at 11 months, but she was only in a size 3. At 2.5 years old, she is still only in a size 6.5.